in Sources/SE0270_RangeSet/RangeSetStorage.swift [25:33]
init(_ range: Range<T>) {
if let intRange = range as? Range<Int>,
let lowerBound = Int32(exactly: intRange.lowerBound)
{
_storage = .singleRange(high: intRange.upperBound, low: lowerBound)
} else {
_storage = .variadic([range])
}
}